Added apache.c/libcurl to configure.in and src/Makefile.am

[collectd.git] / src / cpu.c

diff --git a/src/cpu.c b/src/cpu.c
index adafbea..28e6233 100644 (file)
--- a/src/cpu.c
+++ b/src/cpu.c
@@ -1,37 +1,63 @@
-#include "cpu.h"
+/**
+ * collectd - src/cpu.c
+ * Copyright (C) 2005  Florian octo Forster
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ * Authors:
+ *   Florian octo Forster <octo at verplant.org>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
 
-#if COLLECT_CPU
 #define MODULE_NAME "cpu"
 
 #ifdef HAVE_LIBKSTAT
-#include <sys/sysinfo.h>
+# include <sys/sysinfo.h>
 #endif /* HAVE_LIBKSTAT */
 
 #ifdef HAVE_SYSCTLBYNAME
-#ifdef HAVE_SYS_SYSCTL_H
-#include <sys/sysctl.h>
-#endif
-
-#ifdef HAVE_SYS_DKSTAT_H
-#include <sys/dkstat.h>
-#endif
-
-#if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
-#define CP_USER   0
-#define CP_NICE   1
-#define CP_SYS    2
-#define CP_INTR   3
-#define CP_IDLE   4
-#define CPUSTATES 5
-#endif
+# ifdef HAVE_SYS_SYSCTL_H
+#  include <sys/sysctl.h>
+# endif
+
+# ifdef HAVE_SYS_DKSTAT_H
+#  include <sys/dkstat.h>
+# endif
+
+# if !defined(CP_USER) || !defined(CP_NICE) || !defined(CP_SYS) || !defined(CP_INTR) || !defined(CP_IDLE) || !defined(CPUSTATES)
+#  define CP_USER   0
+#  define CP_NICE   1
+#  define CP_SYS    2
+#  define CP_INTR   3
+#  define CP_IDLE   4
+#  define CPUSTATES 5
+# endif
 #endif /* HAVE_SYSCTLBYNAME */
 
-#include "plugin.h"
-#include "common.h"
+#if defined(KERNEL_LINUX) || defined(HAVE_LIBKSTAT) || defined(HAVE_SYSCTLBYNAME)
+# define CPU_HAVE_READ 1
+#else
+# define CPU_HAVE_READ 0
+#endif
 
 #ifdef HAVE_LIBKSTAT
 /* colleague tells me that Sun doesn't sell systems with more than 100 or so CPUs.. */
-#define MAX_NUMCPU 256
+# define MAX_NUMCPU 256
 extern kstat_ctl_t *kc;
 static kstat_t *ksp[MAX_NUMCPU];
 static int numcpu;
@@ -45,18 +71,16 @@ static char *cpu_filename = "cpu-%s.rrd";
 
 static char *ds_def[] =
 {
-       "DS:user:COUNTER:25:0:100",
-       "DS:nice:COUNTER:25:0:100",
-       "DS:syst:COUNTER:25:0:100",
-       "DS:idle:COUNTER:25:0:100",
-       "DS:wait:COUNTER:25:0:100",
+       "DS:user:COUNTER:25:0:U",
+       "DS:nice:COUNTER:25:0:U",
+       "DS:syst:COUNTER:25:0:U",
+       "DS:idle:COUNTER:25:0:U",
+       "DS:wait:COUNTER:25:0:U",
        NULL
 };
 static int ds_num = 5;
 
-extern time_t curtime;
-
-void cpu_init (void)
+static void cpu_init (void)
 {
 #ifdef HAVE_LIBKSTAT
        kstat_t *ksp_chain;
@@ -92,7 +116,7 @@ void cpu_init (void)
        return;
 }
 
-void cpu_write (char *host, char *inst, char *val)
+static void cpu_write (char *host, char *inst, char *val)
 {
        char file[512];
        int status;
@@ -106,8 +130,10 @@ void cpu_write (char *host, char *inst, char *val)
        rrd_update_file (host, file, val, ds_def, ds_num);
 }
 
+#if CPU_HAVE_READ
 #define BUFSIZE 512
-void cpu_submit (int cpu_num, unsigned long long user, unsigned long long nice, unsigned long long syst,
+static void cpu_submit (int cpu_num, unsigned long long user,
+               unsigned long long nice, unsigned long long syst,
                unsigned long long idle, unsigned long long wait)
 {
        char buf[BUFSIZE];
@@ -122,7 +148,7 @@ void cpu_submit (int cpu_num, unsigned long long user, unsigned long long nice,
 }
 #undef BUFSIZE
 
-void cpu_read (void)
+static void cpu_read (void)
 {
 #ifdef KERNEL_LINUX
 #define BUFSIZE 1024
@@ -203,7 +229,7 @@ void cpu_read (void)
        }
 /* #endif defined(HAVE_LIBKSTAT) */
 
-#elif defined (HAVE_SYSCTLBYNAME)
+#elif defined(HAVE_SYSCTLBYNAME)
        long cpuinfo[CPUSTATES];
        size_t cpuinfo_size;
 
@@ -220,7 +246,12 @@ void cpu_read (void)
        /* FIXME: Instance is always `0' */
        cpu_submit (0, cpuinfo[CP_USER], cpuinfo[CP_NICE], cpuinfo[CP_SYS], cpuinfo[CP_IDLE], 0LL);
 #endif
+
+       return;
 }
+#else
+# define cpu_read NULL
+#endif /* CPU_HAVE_READ */
 
 void module_register (void)
 {
@@ -228,4 +259,3 @@ void module_register (void)
 }
 
 #undef MODULE_NAME
-#endif /* COLLECT_CPU */